The Umarex S&W M&P R8 Air Pistol is a CO2 powered 4.5mm BB Revolver. You can also add a tactical flashlight or laser to the integrated accessory rail . The Smith & Wesson M&P R8 has a manual safety and black synthetic grips, as well as fixed front and a windage adjustable rear sights. This BB replica revolver is not only great for plinking, but also makes a good target shooter.